Small program to calculate prime numbers not working - c++

Question

Upon completion this program will output all prime numbers up to 1000, it is a fairly simple program and although I have read and re-read over the syntax many times at this point it is still not working
The code has been edited since the original post, it now runs with 0 errors, however it will not display the correct result, instead it displays 008D1389 over and over again.
this is the code in its entirety:
#include <iostream>
using namespace std;
//funtion prototypes
int output_number, number = 1, value = 1, i;
bool is_this_number_prime(int number_in_question);
bool does_it_have_factors(int numerator, int denominator);
int prime_number_sender();
int prime_number_output();
//function definitions
int prime_number_output()
{
int value;
value = prime_number_sender();
return value;
}
int prime_number_sender()
{
int value = number;
if (is_this_number_prime(number) == true)
return value;
else
return 0;
}
bool is_this_number_prime(int number_in_question)
{
bool answer = true;
int i;
for (i = 2; i <= number; i++)
{
if (does_it_have_factors(number, i) == true)
answer = false;
}
return answer;
}
bool does_it_have_factors(int numerator, int denominator)
{
bool result = false;
if (numerator % denominator == 0){
bool result = true;
}
return result;
}
int main() {
bool is_this_number_prime(int number_in_question);
bool does_it_have_factors(int numerator, int denominator);
int prime_number_sender(int number_in_question);
int prime_number_output();
int output_number = prime_number_output();
int i;
for (i = 2; i <= 1000; i++)
{
cout << prime_number_output << endl;
number++;
}
return 0;
}
If anyone can shed any light as to why the code is not working I will be extremely grateful. Thankyou.

Answer 1

Your code is generating quite a few errors for me.
main.cpp|48|error: too few arguments to function 'int prime_output(int)'|
You have prime_output declared as int prime_output(int value) but you promptly shadow the parameter value with a local variable value. You might as well drop the parameter, it's not doing you any good.
main.cpp|52|error: too few arguments to function 'int perfect_output(int)'|
Same issue as above. It looks like you're trying to modify the parameter directly, though, which is a no-no the way you're doing it. Try using a reference:
int perfect_output(int& value)
The function itself is weird as heck though. You don't output anything or do any calculations. I feel like you may not have finished writing that yet.
main.cpp||In function 'void user_selection()':|
main.cpp|59|error: a function-definition is not allowed here before '{' token|
This is probably where you're getting the error your question mentions. Your formatting makes it difficult to see this directly; fortunately Code::Blocks tells me where the problem is.
void user_selection()
{
You never close this. (More accurately, your closing brace is all the way at the end of the file, where it triggers another mismatch error.)
main.cpp|87|error: expected declaration before '}' token|
See above. This is the closing brace that somehow got detached from user_selection. Try to be more careful with your code formatting; the easier you can read it, the easier you can see things like this before the compiler does.
main.cpp|63|error: expected primary-expression before '<' token|
Your if statement is formatted oddly. Change = < to <= like this:
for (i = 2; i <= 1000; i++)//if numbers are 1 off, make i = 1.